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Spreadsheet Dependency in Apparel Planning: A Risk Analysis

A structured analysis of the operational, financial, and strategic risks of managing apparel merchandising planning in spreadsheets — quantifying the cost and identifying the threshold at which the risk exceeds the cost of migration.

Overview

Spreadsheet-based merchandising planning is not failing because spreadsheets are bad tools. It is failing because the planning function has grown — in SKU complexity, channel count, and data volume — beyond what spreadsheets were designed to handle.

This analysis quantifies the cost of spreadsheet dependency in apparel planning across three dimensions: operational overhead (reconciliation and coordination), financial exposure (errors in OTB, carry-over, and buy decisions), and strategic cost (decisions delayed or avoided because the data isn't accessible).


Risk Category 1: Operational Overhead

Reconciliation cost

The most quantifiable cost of spreadsheet planning is the time consumed by reconciliation — keeping the OTB file, assortment plan, and buy plan aligned as decisions are made and revised.

Each time a style is added to or removed from the assortment, the following manual updates are required:

  • OTB: Update planned receipts for the affected department and period
  • Assortment plan: Update style count, newness ratio, and depth targets
  • Buy plan: Update or remove the style's quantities
  • Size curve reference: Verify the size distribution is still assigned correctly
  • Allocation model: Remove or adjust door-level quantities

In a 200-SKU assortment, style-level changes happen dozens of times during the pre-season review window. The reconciliation burden is not one large event — it is continuous, and it consumes the highest-leverage planning time.

Research Report

Read the full report.

Industry analysis for apparel brands — benchmarks, key findings, and practical implications for your planning process.

  • Benchmarks from mid-market apparel brands in the mid-market range
  • Data on OTB accuracy, planning cycle length, and team structure
  • Specific process gaps that drive markdown and inventory risk
  • Actionable section: what high-performing teams do differently

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RetailNorthstar Research Team
RetailNorthstar ·

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